The turtle that is nicknamed the clown turtle is the unifilis turtle (Podocnemis unifilis) aka the yellow-spotted river turtle. This turtle gets this nickname because it has a cute and adorable facial expression, and a spotty body pattern resembling a clown. Actually, there are several other turtle species that also have a body with a polka dot pattern, but this unifilis still has the cutest appearance. For those of you who are really interested in keeping a turtle that has an adorable appearance, please choose this unifilis turtle.